1,3-Bis(2-hydroxyethoxy)benzene CAS 102-40-9
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Product Description
Product Details
Introduction
KT HER is an aromatic diol chain extender with a symmetrical molecular structure. Because the hydroxyethyl group is located at the 1,3-position (meta-position) of the benzene ring, its structural regularity is not as good as its isomer KT HQEE. Its melting point is lower than that of KT HQEE, and its crystallisation rate is slower than that of KT HQEE and KT MOCA. It can improve the phenomenon of crystallisation of KT HQEE molten liquid when the temperature is lowered, and its life in the kettle is longer than that of the butanediol chain extender system, which improves operability.
Physical indicators
| Item | Index |
| Appearance | White granules |
| Purity (GC)/% | ≥98.0 |
| Hydroxy value (mg KOH/g) | 555±5 |
| Initial melting point/°C | ≥83.0 |
| Water content/% | ≤0.10 |
| Density of molten liquid (100°C) / (g/cm³) | ~1.16 |
| Viscosity of molten liquid (100°C)/mPa·s | ~13.5 |
| Solubility | Soluble in acetone and ethanol, slightly soluble in DMF, ethyl acetate and water |
Application
KT HER chain-extended polyurethane elastomers can be widely used in various rollers, seals, wear-resistant linings, skateboard wheels, shoe parts, spandex, HER can also be used in polyurethane adhesives, coatings, polyurethane soft foam materials, etc.
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1,3-Bis(2-hydroxyethoxy)benzene
CAS 102-40-9
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